pckbc_elb.c revision 1.4.14.1 1 /* $NetBSD: pckbc_elb.c,v 1.4.14.1 2008/04/03 12:42:14 mjf Exp $ */
2
3 /*-
4 * Copyright (c) 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Juergen Hannken-Illjes.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: pckbc_elb.c,v 1.4.14.1 2008/04/03 12:42:14 mjf Exp $");
41
42 #include <sys/param.h>
43 #include <sys/conf.h>
44 #include <sys/device.h>
45 #include <sys/systm.h>
46 #include <sys/malloc.h>
47
48 #include <machine/bus.h>
49
50 #include <dev/ic/i8042reg.h>
51 #include <dev/ic/pckbcvar.h>
52
53 #include <evbppc/explora/dev/elbvar.h>
54
55 struct pckbc_elb_softc {
56 struct pckbc_softc sc_pckbc;
57 int sc_irq;
58 };
59
60 static int pckbc_elb_probe(device_t, cfdata_t, void *);
61 static void pckbc_elb_attach(device_t, device_t, void *);
62 static void pckbc_elb_intr_establish(struct pckbc_softc *, pckbc_slot_t);
63
64 CFATTACH_DECL_NEW(pckbc_elb, sizeof(struct pckbc_elb_softc),
65 pckbc_elb_probe, pckbc_elb_attach, NULL, NULL);
66
67 int
68 pckbc_elb_probe(device_t parent, cfdata_t cf, void *aux)
69 {
70 struct elb_attach_args *oaa = aux;
71
72 if (strcmp(oaa->elb_name, cf->cf_name) != 0)
73 return 0;
74
75 return (1);
76 }
77
78 void
79 pckbc_elb_attach(device_t parent, device_t self, void *aux)
80 {
81 struct pckbc_elb_softc *msc = device_private(self);
82 struct pckbc_softc *sc = &msc->sc_pckbc;
83 struct elb_attach_args *eaa = aux;
84 struct pckbc_internal *t;
85
86 sc->sc_dv = self;
87
88 /*
89 * Setup interrupt data.
90 */
91 msc->sc_irq = eaa->elb_irq;
92 sc->intr_establish = pckbc_elb_intr_establish;
93
94 if (pckbc_is_console(eaa->elb_bt, eaa->elb_base)) {
95 t = &pckbc_consdata;
96 pckbc_console_attached = 1;
97 } else {
98 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK);
99 memset(t, 0, sizeof(struct pckbc_internal));
100 }
101
102 t->t_iot = eaa->elb_bt;
103 bus_space_map(eaa->elb_bt,
104 _BUS_SPACE_UNSTRIDE(eaa->elb_bt, eaa->elb_base), 1, 0, &t->t_ioh_d);
105 bus_space_map(eaa->elb_bt,
106 _BUS_SPACE_UNSTRIDE(eaa->elb_bt, eaa->elb_base2), 1, 0, &t->t_ioh_c);
107 t->t_addr = eaa->elb_base;
108 t->t_sc = sc;
109 sc->id = t;
110
111 aprint_normal("\n");
112
113 pckbc_attach(sc);
114 }
115
116 static void
117 pckbc_elb_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
118 {
119 struct pckbc_elb_softc *msc = (void *)sc;
120 int irq = msc->sc_irq;
121
122 /*
123 * We ignore slot since all slots use the same interrupt.
124 */
125
126 if (irq >= 0)
127 intr_establish(irq, IST_LEVEL, IPL_SERIAL, pckbcintr, sc);
128
129 irq = -1;
130 }
131